<template>
    <div class="cmt-container">
        <h3>发表评论</h3>
        <hr>
        <textarea  placeholder="请输入要bb的内容" maxlength="120"  v-model="msg"></textarea>
        <mt-button type="primary"  size="large" @click="postComment">发表评论</mt-button>
        <div class="cmt-list">
            <div class="cmt-item" v-for="(item,index) in comments" :key="item.add_time">
                <div class="cmt-title">
                    第 {{ index+1 }} 楼 &nbsp; &nbsp; 用户：{{item.user_name}} &nbsp;&nbsp; 发表时间：{{item.add_time | dataFormat}}
                </div>
                <div class="cmt-body">
                    {{item.content}}
                </div>
            </div>
        </div>
        <mt-button type="danger"  size="large" plain @click="getMore">加载更多</mt-button>


    </div>
</template>
           
<script>
import {Toast} from 'mint-ui'
export default{
    props:['id'],
    data(){
        return {
            pageIndex:1,
            comments:[],
            msg:''
        }
    },
    created(){
        this.getComments()
    },
    methods:{
        getComments(){
            this.$http.get("api/getcomments/"+ this.id +"?pageindex=" + this.pageIndex).then(res=>{
                // console.log(res)
                if(res.body.status == 0){
                    this.comments = this.comments.concat(res.body.message);
                }else {
                    Toast('获取评论失败！')
                }
            })
        },
        getMore(){
            this.pageIndex++
            this.getComments()
        },
        postComment(){
            if(this.msg.trim().length === 0){
                return Toast('评论内容不能为空！')
            }
            this.$http.post('api/postcomment/' +this.$route.params.id,{
                // content:this.msg.trim()
            }).then(res=>{
                if(res.body.status === 0){
                    var cmt = {
                        user_name:'匿名',
                        add_time:Date.now(),
                        content:this.msg.trim()
                    }
                    this.comments.unshift(cmt)
                    this.msg = ''
                }
            })
        }

    }
             
}
</script>
<style scoped lang="scss">
.cmt-container {
  h3 {
      font-size:18px;
  }
  textarea {
      font-size:14px;
      height:85px;
      margin:0;
  }
  .cmt-list {
      margin:5px 0;
      .cmt-item {
            font-size:13px;
            .cmt-title {
                background-color: #ccc;
                line-height: 30px;
            }
            .cmt-body {
                line-height: 35px;
                text-indent:2em;
            }
      }
      

  }
}
            
</style>